-I'm looking for a 2d tetrahedral structured mesh for flow over a cylinder
can anyone provide me with the mesh file?
I want to use it in my code written in fortran
-Is there any website where the mesh files (coordinates of mesh nodes) for common simple flow situations (such a flow over a cylinder, airfoils,...) can be find?
-I've tried to mesh using Gambit but it doesn't reach a good quality for numerical solution. also I have problem using the data (coordinates of nodes) because gambit doesn't give them in order which is suitable. the mesh point numbers are ordered by the order of their creation.
- Assuming some node coordinates are given, do you have any idea about an algorithm to sort them? maybe if I can write such an code, my problem with gambit can be solved!
Please help me with the 4 cases mentioned above.

any answers?
I mean if we have coordinates of vertices in a structured mesh, how can we determine which vertices are neighbors and connected to each other? In other words how can we sort the vertices of input mesh?

hi,i think we are doing the similar thing recently.i am using unstructured grids for this problem,and i get structured grids from gambit.i do not know wheather *.mesh file is for the structured grids.in my case ,i used *.neu file and it will give me unstructured information.so maybe you should use *.mesh?...my guess

Hi
thanks for your response
May I ask you how you use your mesh file in your code?
for example which file format do you use to export your mesh information to your code?
I want to use only mesh points coordinates but I don't know how to use them!
as I mentioned in the forum gambit doesn't give them in order which is suitable. the mesh point numbers are ordered by the order of their creation. I mean I'm seeking for a format which gives mesh cells orderly and also gives its four vertices.
In the unstructured case, assuming you have the mesh nodes coordinates, how do you know how are the connected which cells are neighbor of each other?